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Sustainable Exploitation of Coffee Silverskin in Water Remediation

Author

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  • Angela Malara

    (Dipartimento di Ingegneria Civile, dell’Energia, dell’Ambiente e dei Materiali, Università “Mediterranea”, 89122 Reggio Calabria, Italy)

  • Emilia Paone

    (Dipartimento di Ingegneria Civile, dell’Energia, dell’Ambiente e dei Materiali, Università “Mediterranea”, 89122 Reggio Calabria, Italy)

  • Patrizia Frontera

    (Dipartimento di Ingegneria Civile, dell’Energia, dell’Ambiente e dei Materiali, Università “Mediterranea”, 89122 Reggio Calabria, Italy
    Consorzio Interuniversitario per la Scienza e la Tecnologia dei Materiali (INSTM), 50121 Firenze, Italy)

  • Lucio Bonaccorsi

    (Dipartimento di Ingegneria Civile, dell’Energia, dell’Ambiente e dei Materiali, Università “Mediterranea”, 89122 Reggio Calabria, Italy)

  • Giuseppe Panzera

    (Dipartimento di Ingegneria Civile, dell’Energia, dell’Ambiente e dei Materiali, Università “Mediterranea”, 89122 Reggio Calabria, Italy)

  • Francesco Mauriello

    (Dipartimento di Ingegneria Civile, dell’Energia, dell’Ambiente e dei Materiali, Università “Mediterranea”, 89122 Reggio Calabria, Italy)

Abstract

Coffee silverskin (CS), the main solid waste produced from the coffee industry, has efficiently been used as adsorbent material to remove potential toxic metals (PTMs). In order to assess its suitability in water remediation, kinetic adsorption experiments of Cu 2+ , Zn 2+ , and Ni 2+ ions from wastewater were carried out and the adsorption performance of the waste material was compared with that of another well-known waste from coffee industry, spent coffee grounds (SCG). By using CS as sorbent material, ion removal follows the order Cu 2+ > Zn 2+ > Ni 2+ with the adsorption equilibrium occurring after about 20 min. The adsorption efficiency of Ni 2+ ions is the same for both investigated materials, while Cu 2+ and Zn 2+ ions are removed to a lesser extent by using CS. Equilibrium-adsorption data were analyzed using two different isotherm models (Langmuir and Freundlich), demonstrating that monolayer-type adsorption occurs on both CS and SCG surfaces. The overall results support the use of coffee silverskin as a new inexpensive adsorbent material for PTMs from wastewater.

Suggested Citation

  • Angela Malara & Emilia Paone & Patrizia Frontera & Lucio Bonaccorsi & Giuseppe Panzera & Francesco Mauriello, 2018. "Sustainable Exploitation of Coffee Silverskin in Water Remediation," Sustainability, MDPI, vol. 10(10), pages 1-11, October.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:10:p:3547-:d:173528
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    Cited by:

    1. Emilia Paone & Filippo Fazzino & Daniela Maria Pizzone & Antonino Scurria & Mario Pagliaro & Rosaria Ciriminna & Paolo Salvatore Calabrò, 2021. "Towards the Anchovy Biorefinery: Biogas Production from Anchovy Processing Waste after Fish Oil Extraction with Biobased Limonene," Sustainability, MDPI, vol. 13(5), pages 1-12, February.
    2. Daniela D. Porcino & Francesco Mauriello & Lucio Bonaccorsi & Giuseppe Tomasello & Emilia Paone & Angela Malara, 2020. "Recovery of Biomass Fly Ash and HDPE in Innovative Synthetic Lightweight Aggregates for Sustainable Geotechnical Applications," Sustainability, MDPI, vol. 12(16), pages 1-16, August.
    3. Minh Trung Dao & T. T. Tram Nguyen & X. Du Nguyen & D. Duong La & D. Duc Nguyen & S. W. Chang & W. J. Chung & Van Khanh Nguyen, 2020. "Toxic Metal Adsorption from Aqueous Solution by Activated Biochars Produced from Macadamia Nutshell Waste," Sustainability, MDPI, vol. 12(19), pages 1-11, September.

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